Home / 874,389.30-1,206,661.65-492,422.58

Finding the Fourth Proportional to 874,389.30, 1,206,661.65 and 492,422.58

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Solution

The fourth proportional to 874,389.30, 1,206,661.65 and 492,422.58 is: 679,545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,389.30 : 1,206,661.65 = 492,422.58 : x
  2. Step 2: Convert to fraction form
    874,389.30/1,206,661.65 = 492,422.58/x
  3. Step 3: Cross multiply
    874,389.30x = 1,206,661.65 × 492,422.58
  4. Step 4: Simplify right side
    874,389.30x = 594,187,442,880.06
  5. Step 5: Solve for x
    x = 594,187,442,880.06/874,389.30
  6. Step 6: Final answer
    x = 679,545.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.